diff --git a/requirements.txt b/requirements.txt
index 7bc4eb348..f9a7d8455 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ paramiko>=2.0.0 # LGPLv2.1+
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 pecan>=1.2.1 # BSD
 python-barbicanclient>=4.5.2 # Apache-2.0
-python-cinderclient>=3.3.0 # Apache-2.0
+python-cinderclient!=4.0.0,>=3.3.0 # Apache-2.0
 python-designateclient>=2.7.0 # Apache-2.0
 python-glanceclient>=2.8.0 # Apache-2.0
 python-glareclient>=0.3.0 # Apache-2.0